Hi All,
I posted a question earlier about which would be the best way to go when creating a large rgb led matrix, I have worked on a tlc5940 schematic and this is the (second/third) draft i dont think that its by anymeans complete as some of the schematics I have been working from contain some IRF9540 P channel Mofsets .
Please refer to the attached drawing so I can hopefully exxplain what it is I am looking to achieve and if it is in fact, A) Possible and B) workable?
From what I understand from looking into previous projects (from other amazing projects around the site) I need to create a a signal to create a drain at each of the signal outputs in the TLC5940.
Can i create a system that sends a signal to the 'control' chip, the signal in is processed by the Control chip to send 4 output signals to the Anode Controller and the RGB sinks.
Is this method of sending a serial signal containing right information to drive the other 4 chips?
would it be better to chain 4 chips together for Anode, R channel, G Channel and B Channel?
(the leds in the first images are set up the exact same way as in the second, only the second does not have a controller chip_
Please see the second schematic to see the chained version I have drawn. I know there are a lot of programs and demos out there and I am hoping to learn a lot more about this. (to the point I can understand completely the design and programming sides of this particular circuit)
but at the moment I cannot understand how to program a drain or send a 8 bit value to the chip that can then set the brightness...
or am I actually misunderstanding the concepts of drains completley?
The reason I ask Is that the projects I have tried to follow all use common anode RGB LEDs (5mm type not onboard or strips) and this is where my electronics knowledge ends...
